pull/145/head
Windell Oskay 2020-10-18 18:53:01 -07:00
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@ -2502,14 +2502,15 @@ td {text-align: center}
<p>In addition to the pins of PortB, additional broken-out I/O pins accessible on the EBB include:
PortA: RA0,1,2,3,5, PortC: RC0,1,2,6,7, PortD: RD: 0,1,4,5,6,7, and PortE: RE0. Every pin on PortB,
PortC and RA6 can source or sink up to 25mA each. All other pins can source or sink up to 4mA each.
Note that pins RA0, RC1, RD4, RD5, RD6, RD7 and RE0 are brought out to the I/O header but already
have existing analog or digital functions mapped to them and so should only be used for monitoring
these signals rather than as GPIO.
</p>
<p>All pins of PortB have weak pull ups to 3.3V, which can source between 80 and 400 μA, and
are enabled any time the pin is an input. Pull ups are not available on the other (Port A, C, D, E)
GPIO pins. Many of the I/O pins can be used for general purpose digital I/O (GPIO), and some can also
be used as RC servo outputs, within the limits of <code><a href="#S2">S2</a></code>. Pins RA0, RC1,
RD4, RD5, RD6, RD7 and RE0 are brought out to the I/O header but already have existing analog or digital
functions mapped to them and so should only be used for monitoring these signals rather than as GPIO.
be used as RC servo outputs, within the limits of <code><a href="#S2">S2</a></code>.
With the exceptions listed in the table below and RA0, RC1, RD4, RD5, RD6, RD7 and RE0, all of the
broken-out I/O pins are initially configured at boot as digital inputs.
</p>